Location |
NAD 83 |
52° 31' 00.00'' N, 122° 17' 05.00'' W
52.516667, -122.284722
UTM: Easting 548537, Northing 5818746, Zone 10 (North)
|
NAD 27 |
52° 31' 00.23'' N, 122° 17' 00.68'' W
52.516731, -122.283521
UTM: Easting 548620, Northing 5818537, Zone 10 (North)
|
NTS |
093B09W |
BCGS |
093B059 |
|
Geological Summary |
CHALCOPYRITE, PYRITE AND SPARSE MOLYBDENITE OCCUR IN QUARTZ VEINS ACCOMPANIED BY VARIOUS COMBINA- TIONS OF CHLORITE, SERICITE, EPIDOTE AND CARBON- ATE. HOST ROCK IS AN INNER BORDER PHASE OF THE TRIASSIC GRANITE MOUNTAIN PLUTON, WHICH HAS UNDER- GONE PERVASIVE SAUSSURITE-CHLORITE ALTERATION. FOUR ECONOMIC ZONES HAVE BEEN RECOGNIZED AND ARE IN VARIOUS STAGES OF DEVELOPMENT AND PRODUCTION; THESE ARE THE POLLYANNA, GRANITE LAKE, GIBRALTAR EAST AND GIBRALTAR WEST ZONES. THE GENERAL TREND OF DEFORMATION, ALTERATION AND MINERALIZATION IS WESTERLY AND NORTHWESTERLY.
|